Blueberry Cheesecake Tart

Name: Blueberry Cheesecake Tart
Ingredients: 2 tablespoons cornstarch; 1/2 cup sugar; pinch of salt; 1/4 cup water; 2 cups fresh blueberries; 2 teaspoons fresh lemon juice; 1¼ cup all purpose flour; 8 tablespoons unsalted butter ( cut into 1/2 inch pieces); 1 tablespoon sugar; 1/4 teaspoon kosher salt; 2 teaspoons apple cider vinegar; 4-8 tablespoons cold water; 1 egg white + 1 teaspoon water (lightly beaten); 1 tablespoon turbinado sugar; 2 tablespoons sliced almonds; 1 8oz package cream cheese (room temp); 1/3 cup sugar; 1 egg (room temp); 1 teaspoon vanilla bean paste; 1/2 teaspoon almond extract; powdered sugar ( for dusting)